Rod-lifting tool.



J. M. MILLER.

ROD LIFTING TOOL.

APPLICATION FILED NOV-2,1916.

UNltTED srnrns rarnnr orrren JOHN M. MILLER, OF EAGLE PASS, TEXAS, ASSIGNOR 0F ONE-HALF TO OSIE S. HARPER, OF EAGLE IPASS, TEXAS.

ROD-LIFTING TOOL.

Application filed November 2, 1916.

To all whom it may concern:

Be it known that i, JoHN M. MILLER, a citizen of the United States. residing at Eagle Pass, in the county of Maverick and State of Texas, have invented certain new .and useful Improvements in Rod-Lifting Tools, of which the following is a specification.

This invention contemplates an improved rod lifting tool particularly designed for raising the sucker rods of pumps orfor raising well casings and has as its primary object to provide a device of this izharacter which may be easily manipulated and which be readily engaged with a sucker rod or casing to effect the lifting thereof.

The invention has as a further object to provide a device of this character wherein, when the tool is engaged with the sucker rod or casing, it will be held against displacement therefrom.

And the invention has as a still further object to provide a tool having a dog adjustable between the jaws thereof so that the tool may be easily engaged with sucker rods or casings of differentdiameters.

Other and incidental objects will appear as the description proceeds and in the drawings wherein 1 have illustrated the preferred embodiment of the invention and wherein similar reference characters designate corresponding parts throughout the several views:

Figure 1 is a fragmentary perspective view of the device showing the work engag ing member thereof positioned to recelve a sucker rod or casing, and

Fig. 2 is a perspective view showing the device connected to a conventional type of sucker rod in position for raising the rod and particularly illustrating the manner in which the dog carried by the outer jaw of the work engaging member is adjustable to engage the said rod.

In carrying out the invention, my improved tool is formed with a stock including a shank 10 bifurcated at its lower extremity to provide outwardly curved arms 11. Swiveled upon the upper extremity of the shank is a link 12 for receiving a cable or the like.

Swingingly mounted between the free extremities of the arms 11 of the socket is a work engaging member preferably having Specification of Letters Patent.

Patented Apr. 2st, 1917.

Serial No. 129,192.

arranged to overlie the said recesses and connected with the arms 11 by screws or other suitable fastening devices.

Connected to the inner extremity of the shank 10 of the stock is a stop member 18 seating flat against the stoclrand provided with an arm 19 projecting between the arms 11 of the stock. This arm 19 is disposed for engagement with the work engaging member for limiting the said member in its swinging movement upon the arms 11 with the said member disposed, as particularly shown in Fig. 1, in a plane therewith. In this position of the work engaging member, the shank 10 of the stock may be readily grasped for engaging the member with a pine or sucker rod.

ihe outer aw let is recessed upon the upper side thereof and slidably mounted in this recess is a dog '20. The dog 20 is formed with a series of longitudinally spaced openings 21 for receiving a screw or other suitable fastening device 22 for adjustably connecting the dog with the said jaw. The dog may thus be positioned upon the jaw l ltoward the jaws13 to project into the slot be tween the said aws. In using the tool, the work engaging member is positioned upon the stock as illustrated in Fig. 1 for engage ment with a sucker rod or casing, and in order to clearly illustrate the operation of he tool I have, in Fig. 2 of the drawings, shown the said tool connection with a conventional type of sucker rod 23, this rod carrying at its upper extremity, the usual coupling sleeve 24.

As will be observed, the rod 23 is received within the slot between the jaws 13 and 14: of the tool with the sleeve 24: abutting the upper side of the work engaging member. For lifting the sucker rod, the stock 10 is swung upwardly upon the said member and a cable attached to the link 12.- When the stock is so swung upwardly, the arm 19 of the stop member 18 is shifted to a position projecting into the slot between the jaws 13 and 14 for engagement with the sleeve 24 of the sucker rod to prevent the displacement of the tool from the rod. The tool may now be pulled upwardly for raising the rod. By employing a pair of the improved tools, one tool may be used to pull the rod 23 upwardly a distance corresponding to the length of one of the sections of the rod when the other tool may be used to engage the next adjacent 'lower section so that the upper section may be removed. The lower toolwiill then be lifted to raise ano.thersection of the rod and the first tool then again engaged with the rod, this operation being repeated until the rod is entirely withdrawn.

Attention is now directed to the fact that the dog 20 is adjustable into the slot between the jaws 13 and 14 of the work engaging member for engagement with sucker rods or casings of different diameters. Consequently, with the rod 23 positioned between the said jaws, the dog may be moved to engage with the said rod, so that the tool may firmly grip the rod and preferably, the dog is provided with a serrated inner gripping edge. It will, therefore, be seen that any likelihood of the slipping of the tool is prevented while, at the same time, the device may be employed for withdrawing sucker rods or casings of relatively small diameter. I accordingly provide a particularly efiicient construction for .the purpose set forth and a Copies of this patent may be obtained for tool which may be easily manipulated in practical use.

Having thus described the invention, what is claimed as new is:

l. A device of the character described including a stock, a work engaging member carried thereby and provided with spaced jaws, a dog carried by one of said jaws to confront the other jaw, and means arranged for engagement with the dog at longitudinally spaced points selectively for holding the dog fixed.

2. A device of the character described including a stock, a work engaging member carried thereby and providing spaced jaws, a dog mounted upon one of said jaws and provided with spaced openings, and means arranged for selective engagement in said openings for adjusting the dog to project between the jaws.

3. A device of the character described including a stock bifurcated to form spaced arms, a work engaging member having the form of a hook swingingly mounted between the said arms with the shank of the hook providing an inner jaw and the bill of the hook providing an outer jaw, the outer aw having a recess formed therein opening through the upper face of the said jaw, and a dog received within said recess to confront the inner jaw with the dog removable at the upper side of the outer jaw.

In testimony whereof I afiiX my signature.

JOHN M. MILLER. [n 8.

Washington, D. C. 

